Change-speed driving-gear.



PATENTED AUG. 18, 1908.

A. T. COLLIER. CHANGE SPEED DRIVING GEAR.

APPLIQA 'I'ION FILED AUG. 20, 1907.

8 SHEETSSHEET 2.

Fly. 20

No. 896,691; I PATENTED AUQ.18, 190s. A. T.' COLLIER,

GHANGE SPEED DRIVING GEAR.

APPLICATION FILED AUG. 20, 1907.

8 SHEETS-$111331 3.

No.896,691. PATENTED AUG.18,1'908.

' ,A. T. COLLIER.

CHANGE SPEED DRIVING GEAR.

APPLIOATION FILED AUG. 20. 1907.

B SHEETS-SHEET 4.

. .zizwnzan No. 896,691. PATENTBD AUG. 1a, 1908. A. COLLIER. GRANGE SPEED DRIVING GEAR.

AIPLIGATION FILED AUG. 20, 190'].

8 SHEETS-SHEET 6.

Fig Z PATENI'AIVEDVAIUG. 18

A. -T. COLLIER. I CHANGE SPEED DRIVING GEAR.

APPLICATION FILED AUG.20, 1907.

8 SHEETSSHBET 7..

Fi .8 F5 19 iwl 5 I; M g

PATENTED AUG. 18, 1908.

No. 896,691. .A. I. COLLIER.

CHANGE SPEED-DRIVING GEAR.

APPLIOATION PILBD AUG. 20, 1901;

mums-man: a.

AIRS PATENT OFFICE.

seen-ere centres, or ST..ALBANS, ENGLAND, Assienon or ousgsrr'rnmotnseey qr QST AVAIL PYcEAnes-smnn 'lweom'it ma/yconemi i H a on it known' that' I, THOMAS Cor;

s ubjeetof the King of Great Britain,

g StJllbahs, He'rts, England, have eta in Change-Speed Driving-.Gear, of

which the following is a sp eoification.

invention relates to change speed (brim gear for general application where I t ariab e speeds are required.

My improved gearing comprises a driven member,- two-or more intermediate and nter- }ehangeable' members,.and a clutch or like deviee tor coupling thedriving shaft to-any one the said intermediate members. I Y 4 In one form of my improved gear as ap-' plied to worm driving,' the driven member is a the di s rent .s "1 the connection 1 spindles-from: E referablyworm-wheel round which? are arranged two or'more worms gearing with said wheel, and

earried a frame mounted to be rotatable ahoutthe dr ven shaft.

rushed. with means for retaining it iii-anyone Said frame is furdrivin'gpositions and for releasing it ..-.d too; different driving position *hena ehange'o'l speed is required. Aelutch t. thatworm which is in the driving position. .Whon a plied to worm gearing of the type in whiehit e teeth oi the worm wheel are formed by or rollers the; different worms for iving the difierent speeds, are preferably al of diameter,' but have respectively.

' On the wralworms are difierentand proportional to Zeeds required; In this case 'thel difl'erent distances of the several worm earrying the Worms-so, that the adjustment is etl'ected, when the said frame is turned. to

e the S e e Worm tQtho drivingposi- My invention can lie-extended toichange Speed gears employing spun'gjfibevhor face gears in lieuofworn: gearing;

SEYMOUR rosrEsj-or LONDON, ENGLAND.

imrvme-GEAR.

Sneeification at Iietters Patent,

fs li'taum flied August 120, 1991. Serial No; 389,412. a

. entel eertain new aiid useful Improve erovided forconn'ectin'g the driving shaftetween the driving shaft andthe we I made adj ustable to accommodate he center of'the driven shaft; make "this connection automat- I: ieallyl adjustable and controlled by the. frame fihe i v rel ntermediate. gear Wheels hemg effIlifierent' diameters and carried etableframeithd Patent same as above indicat worm driving.

In my improved gear; "'t gears remain permanentl I in driven wheel, but onlybile't v neoted to the driving t'feh the remaining ones runnin"- i 4 In the aocompanying -is a vertical. central secti elevation with parts re g referred form of my? ig. 3v is a side elevation 4' view of the gearing only Shh modification of my in ate ear.

Like lettersindicatec res n mg throughout the drawing H Referring to Figs. 1' nd Z shaft and b the driven. shat suitable bearings here -sleeves c, d. On these s u e in which are rotatably rn n h hiu I f "whee freferably run in ball be; rm

hese.

7c fixed to the .t

motion to a minimum. (Q and have right-handed single-,g a doublean I ed Worm and the velocity 5e .s ing proportional to the n -is asingle-threaded worm single thread, so as to-;p l fgd1}-,

e. Thee. at

in directions aborititkenggoygrnfidffifiv t! slur-levee guises ed.

- 1.- s t iiedue n'iotion of the driven 1; in re, erse. direction. The worm-wk];eel. l s ijnalillslwith balghteeth m, m which ia re gpghle o tigyn u g S in elevation of the levenio lhiigff change-speed gear. i'g

- view drawn to 'ane nlarj parts removed, showing [L lid 0 m the wedge m in Figs d lg, a similar view to form of construction of .ing. Figs. fiend-7' ares 1 and 2, showing another a dfliny 5 improved gearing. s a pl ail 'laiigliliigd -9 a longitudinalseetiong's yowi i l-" 'iej detgllgof construction; Fig. 101s, m jti e ffto Fig 1 and Fig. '1 is '5; d e nlhiatt' "side are provided with clutch-members owhich are adapted to engage a corresponding relatively-movable clutch-member p on the driv-' motor car, or as heremafter described. The

casin e is moreover provided with a gearwheeig fixed thereto for enabling it to be rotate on the bushes c, (1, so as to bring any one'of the worm-shafts n, n into line with the driving shaft'a. The gear-wheel q engages with a rotatably mounted gear-Wheel r'fixed to a gear-wheel s which ears with a toothed segment on the handever u. The usual locking-bolt 'v .for engaging'with a toothed sector '0" is also connected through a slide w and rod w to a wedge-piece a which slides by means of a longitudinally extended dovetailed slot on a circular guide y formed at the end of the pivot-shaft of the lever u. The

wedge=piece x coacts with a ball z rotatably mounted in one end of a rod 3 which slideslongitudinally in guides 4, 4 arranged coaxiallywith the guide y. The rod 3 bears at its other end-a wedgeiece 5 which coacts" with a roller 6 mounte in a rod 7 that slides longitudinally in guides 8, 8 andis pressed downwards by a s ring 9. 1 The lower end of the rod 7 forms. a olt for engaging with. one

or other of a series of recesses 10, 1 0 formed in the periphery of the casing e, m such a manner as to prevent rotation of said casing on the sleeves c, (Z. By these means, when 10 in which it was lying and the casing ecan be turned by the lever 11.; by releasing the bolt 49, .the lever u and the casing 6 can be simultaneously locked in any one of their operative positions. Other suitable mechanism may the casing or-frame e and securing it in position.

In. the' arrangementshown in Fig. 5, the worm-wheel 7c and the worms f, g, h, j .are made with ordinary teeth, the angles of the ."and clutch-member p may be automatically moved up and down to correspond with the of theWor'm-shafts n and the driven shaft 1), these means being-of similar construction to those to be hereinafter described with reference to Figs; 6 to 9 forautomatically moving from side to side.

- ,In Figs. 6 and,7, a form of caring is shown in which there is a series of %evel-wh eels f, g, h rotatably mounted in the casing'and permanently engaging with the locking bolt 1) of the leveru is removed from a notch in the sector 0, the rod 7 will. be simultaneously removed from the recess owever be employed for rotating worm-threads being made the same and the variation in the distances between the axes the shaft (1 and clutch-member p horizontally my improved a largerbevel-whee1 is? fixed voIi-the driven rotatablymounted in the casing e and which permanently engages with a bevel-wheel is also fixed on the. shaft b but arranged on the opposite side of the bevel-wheel 1' to that at which the bevel-Wheel k is arranged relatively to the bevel-wheels'f", g h so as to give rotation at a slow speed in the other shaft a is'mounted in a caring 11 (Figs. 8 and 9) arranged to slide axially in a carriage 12 which is capable of sliding transversely 1n fixed guides 13, 13 and the bearing 11 is provided with a rib or web 14 for engagin with a fork 15 pivotally mounted on the clutch- 11 and shaft (1 to be moved axially in the slide '12 in all'positions of said slide, the transverse movement of which is effected 'by I means of a cam-groove 17 provided onv the casing e and coacting with an antifriction vided'witha telescopic section a connected therein by Cardan joints 19, 19,- so as .tope'r mit the longitudinal extension thereof necesof the movable clutch-member p.

11, a gear-Wheelk is fixed tothe s aftb and rotatably mounted in the casing 12, for giv-' 'ing three difierent speeds-in one'directlon, while an internal gear-wheel k is formed integrally with the gear-wheel 7c and permanently engages with a gear-pinion 1' rotatably mounted in'the casing'e for giving a slow moved towards and away from the shaft b by similar manner to that illustrated in igs. 8

stead of at right angles as in the arrangeinents already described. I WhatIclaim is:

1. Change-speed driving gearicomprising a wheel and rotatablymounted in said frame,

frame, 'means for coupling said shaft to'either frame into and securing it'in therespective positions in which the several worms are coupled to said shaft.

2: Change-speed driving gear comprising a frame, a .gear-wheel'rotatably mounted in 'rection of thread gearing with said gear. wheel and rotatably mounted in said casing,

. a shaft rotatably mounted adjacent to said shaft lg-for giving three differeht-speeds in one d1rect1on,'and a. bevel-wheel i which is also direction. .In this arran 'ement, the driving operating lever 16, so as to allow the bearing sitated by throwing the clutch into and out;

of engagement and by the transverse motion I *1n the arrangement shown in Fi 10 .and

permanently engages with pinions-f g ands 'e'ed of the shaft. 6 inthe reverse direction.

he shaft a and clutch-member p can.be

means of a cam-groove 20 on the cas' e'ina.

and 9. In this case however the driving and driven shafts are parallel to each other insaid frame, worms of varying pitch and di-.

a shaft rotatably m ounted vadjacentt'o' said of said worms, and means for bringing saidcasing, means for coupling said shaft to either of said worms, and means for bringing said easing into' and securing it in the respective ositions in which the several Worms are coup ed to said shaft.

ber-t0 any oneof sait intermediate members.

.4. Change-speed driving gear comprising a frame, a gear-wheel rotatablv mounted in said frame, gears engaging said gear-wheel .js' and iot atably mounted in said frame. a shaft rotatably mounted adjacent to said frame.

means-:- for coupling said shaft to either of said'gears. means for bringing said frame into and securing it in therespective positions in which the several gears are'coupled to said shaft, and means for moving said shaft to bring it into registration with said gears.

5. Change-speed driving gear comprising aframe, a wheel rotatably mounted in said frame and having a series of recesses in its periphery, ball teeth mounted to rotate in all directions in said recesses, globoid worms engaging I said ball teeth and rotatably mounted in said frame, guides for said balls arrangedbetween said worms, a shaft rotasaid block.

tably mounted adjacent to said frame, means for coupling said shaft to either of said gears, and means for bringing said frame into and securing it in the respective ositions inwhich the several worms are coup ed to said shaft.

6. Change-speed driving gear comprising a frame, a gear-Wheel rotatably mounted in said frame, gears engaging said gear- *heel and rotatably mounted in said frame, a shaft rotatably mounted adjacent to said frame, meansfor cou ling said shaft to either of said gears. means or bringing said frame into and securing itin the respective positions in which the several "ears are coupled to said shaft, an extensible section in said shaft, universal joints at the ends of said extensible sl'i-aft-sectio1i,a bearing su porting the cou ling-end of said shaft, a blbck in 'which said bearing can slide axially, a guide in which said block can slide transversely, a cam on said frame for moving said block in said guide, and means for moving said bearing in Intestimony whereof I have hereunto set my hand in presence of two-subscribing Witnesses;

ARTHUR THOMAS COLLIER. 'itnesses:

GEORGE I'IARRISON,

HERBERT A. BEEs'ro 

